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=
2(p-3) = 1 x 4
2p-6 = 4
2p = 4 + 6
2p = 10
p =
p = 5
6. kemiringan =
=
-1(h-4) = 4(7-h)
-h+4 = 28-4h
-h + 4h = 28-4
3h = 24
h =
h = 8